I have a voice add-on that is not working. Currently the phone is in NY, but voice is not available. The data plan is OK. Is there anything that needs to happen in order to activate the voice calls? Some phone settings? My phone is Android, Motorola G Play. Calling the phone doesn't generate an error message, it just rings, but no calls are received.
@ca_iancu with US decommissioning 3G network, the voice roaming is not 100% reliable. Many people mentioned it ddidn't work in NYC
First, make sure you are using T-Mobile network
You can try to change your preferred network type to 2G to see if it connects at all. Voice will be using 2G network but you likely don't want to leave it in 2G as your data will not work or will be extremely slow
Since your data is working , use LTE again, and download VoIP app Textnow to make free calls and text to US and Canada. That is a workaround for now